Original BMW Valve Rocker Arm for BMW 1, 2, 3, 4, 5, and 7 Series, X1, X3, X4, X5, X6, Z4, and Mini Cooper (2006–2018)

Between the camshaft and the valves, the Original BMW rocker arm 11-33-7-631-589 opens and closes the intake and exhaust valves on a wide range of BMW and Mini engines built from 2006–2018. A rocker arm works as a lever: the cam lobe pushes one end, and the other end presses the valve stem down so air and fuel can enter or exhaust gas can leave. This is a Genuine BMW part made in Germany. It is priced each and sold individually, so order one for every rocker you are replacing.

Original BMW Parts carry a 24-month parts warranty.

Over time, the clearance between the rocker and its mating parts can widen beyond BMW's specification, and that wear shows up as valve train noise. Worn rockers can also cause a misfire or rough idle and a loss of power, because the valves no longer open as they should. Replacing the rockers makes sense whenever the top end is being rebuilt or new camshafts are going in. BMW has used several numbers for this rocker over the years. Parts carrying 11-33-7-559-797, 11-33-7-532-046, and 11-34-7-556-422 cross over to this current part.

Technical Details

• Manufacturer: BMW (Original BMW part)
• Part number: 11-33-7-631-589
• Cross references: 11-33-7-559-797, 11-33-7-532-046, 11-34-7-556-422
• Made in Germany
• Sold individually, priced each
• System: valve train
• Warranty: 24-month parts warranty

Common Questions

Is this rocker arm sold as a set?
No. It is priced each and sold individually.

What does a worn rocker arm sound like?
Excess clearance causes a tapping or clicking noise from the valve train, and it can come with a rough idle or misfires.

My old rocker has a different BMW number. Will this one work?
If your old part is 11-33-7-559-797, 11-33-7-532-046, or 11-34-7-556-422, it crosses to this rocker.

Fitment & Compatibility

Check the table below for the exact year, model, submodel, and any listed notes. PMB Performance can confirm this against your VIN, backed by more than 20 years of parts and fitment work.